Pressure-reducing valve.



PMIENTYBD AUG.- 11,1903.

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PATENTED AUG. 11, 190s.

i PRESSURE REDUCING VALVE. 4

AYPLIGATIOH FILED NOV. 30, 19,07.

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fj. T. CABLE.

PRLSSULLLEDUCLNG VALVE. i

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ATTORN UNITED STATES PATENT (BFICE.) FRXK TAT-LOK CABLE, QUIXU'XI', MASSACHUSETTS, SSIGNOR T ELECTRTC BUAT .I i

IXY, O1" NEW YORK, N. Y., A CORPORATION OF I\`E\V PRESSURE-REDUCING vALvE.

N'o. 895,426. Specication'of Letters Patent. Patented Aug. 11, 1908.

Appcation filed November 30, 1907. Serial No. 404,528. -i

T o all whom it. may concern: the cone-valve i operated by the magnet L v Be. it known that i, FRANK TAYLOR (A- The stem of the valve li extends through the BLV., a citizen of the United States, residing shell of the magnetcentrall)v and carries :1t-its at Quincy, in the count)Y of Norfolk and upper end a disk armature k which is nor- 5 State'of Massgchusetts, have invent-cd cermally spring-pressed upward by the spring l. 0'

tain new and useful Improvements in Pres- The frame E is screwed on to a. tube D' .Sesure-'Reducing Yalvcs; and l do hereby decured to the valve casing and forming part of clare the following to be a full, clear, and elvthe stuilng-box. From the low-'pressure act description of the invention, such as will pipe A a duct m leads to an annular groove enable others skilled in tue art to which it apfm. between the valve casingand the frame E 6'5 pertains to make and use the same. and from thence through one side of the-v lhe obect of my invention is to produce a. frame to an annular groove m2 in the lower )rassure reducing valve. capable of use on face offthe cover fand thence through the liigh pressure and whicliwill give-an accurate duct m3 to the upicr surface of the dia-i reduction and a constant ilow on the-low phragm. In t-his uct m whereit Apasses 70 ressure side. The valve has been particu through the frame is a controlling valve n arly designed for use. on submarine boats Ahaving a. port u (see Fig. 6). These parts' and in simiia-r places in which on account of form a passage of limited capacity from the thelimited space, air is stored at a very high low pressure side of the system to the upper pressure, Z000 to 300() pounds, and has to he side of the diaphragm, and provided with theA 55 reduced to a pressure of 10 to 200 pounds, valve n for accurately. controlling it. and in which it is particularly necessary that Mounted on the low pressure pipe A and the ilow on the low pressure side should be. communicating with the interior thereof constant and even. through a passage o is a casing p containing The nature of my im )roveinents will be the plunger p"which is moved against the 80 understood from the following description )ressure in the pipe A by the spring p.

l www.. einem and the accompanying drawings: Ihis plunger carries a trigger g having an '1n- In thc. dravl'mgs, ligure 1 is a` central secsulatcd head q and adapted to engage the t-ion of the, complete valve; Fig. .2 is a plan end of the lever 1 whichcarries the depending view of the circuit closing mechanism for the contact, pin 1" arranged to dip into a mercury 85 electric circuit which excites the magnet to cup s, to complete the circuit of the magnet f act-nate the valve; Fig. 3 is a section on the l. The lever -r which is pivoted at t is v line. 3-3 of' Fig. 1 looking in the direction of pressed upwardly by the spring 'u until the f the, arrows; Fig. 4 is a. section on the line 4-4 stop t engages the lug ti. 'lhe circuit of the" of Fig. 1, looking in` the direction of the armagnet I is from battery B through wire te, 90 rows, Fig. is .a section on the line 5-5 of magnet. I, wire w', binding-post wg. vn're u, Fig. l; Fig; (i is a .et.ail view of the controlpin 1, mercury-cup s, binding-post 8",'wire'w, ling valve N, and F ig. 7 is a view, similar to to battery. The depending cont-act, pin r is .F ig. 1, of a modification. insulated from the lever r as shown in Fig. 5. i l 'l 4t) Between the high pressure main A and the The Qperationxof the valve. is as follows: 95 :l

l-ow pressure main A is a valve casing B con- The pressure in the main normally opens taining the cone-seated valve C, the stem of and holds up the valve C allowing a iiow into which extends upwardly through the valve the low pressure main A'. The fessure in 'casing and through a stulling box D in the that main is conducted through t le passage 45 frame F. and tends to close. the valve C by. m, m', -m and fm to the up )er surface -of the 100 i its own weight and the weight of its head diaphragm and through the. port g to the C. The frame E carries a cap F recessed chamber f and through the duct h and its xon its under face to form the chamber f h aust port to the atmosphere. This conduit closed by the circular )late 'l lia-ving' a. cenas controlled by the valve n has the. effect to 50 tral port g. Between tliel cap fand the upper regulate the sensitiveness of the main valve 165 i circuiar rim of the frame E 1s mounted the and to dampen any K it variations in the diaphragm to which the head C of the iressure on the low-pressure main and there- *valve stein is secured. Extending from the liy steady the movement ol' the main valve. chamherfisaducthhavingaport which ex- As the pressure in the low pressure main'V ,y 5,5 hausts to the atmosphere and is controlled by rises it lifts the piston p' against the. action of 110 the c evicc is set, say 50 pounds, is reached,

'normally open balanced valve con-trolling and mechanism acting upon said switch and pressure side after making: a great reduction vu sed on a system in 'to be closed by the spring. or its,equivalent,

`the circuit closed until an excess of pressure the s ring p2. and when the pressure at which this movement of the piston p causes the trigger g to move the lever r and depressin-r` the pin r close the circuit of the magnet I, Whereu Kon Vthe armature of the magnet is drawn own against the action of the spring l and the valve i is closed. The pressure thereupon accumulates to the upper side ot the da phragm and positively closes the rnain valve aga-inst the pressure on the high pressure side of the system. By this means Isecure positively acting pressure reducing valve which will give a constant How onthe low 1n pressure and in which a putting discharge is avoided. When a valve. of., this type is iii-h the main valve is open the greater portion of the time as when the discharge on the 'ein' pressure side is substantially constant, then itis preferable to arrange the parts as in Fig. l so that the circuit of the magnet closed by the excess ot pressure on ihr lov.' pressure side, but when the valve is used on a system in which the main valve is closed the greater portiinrol' the time., as when the. discharge on the low pressure is intermittent, then it is preferable to so arrange the parts that the magnetic 'circuit broken by an excess of pressure on the low pressure side, the valve 'i being arranged and to bc opened by the magnet.

Such an arrangement of parts is illustrated in Fic. I, in which the parts are the same. as in Fig". l, excepting that the magnet I has au armature k `which, when the magnet energized lifts the valve; 'i' against the action of the s ring l', and thelever r2 is pi voted at fz: in abralcket x extending from the other side of the cylinder p, and this lever rz is turned by the springy mounted on bracket 'y' until stop :i:2 engages lug thus holding in pipe A lifts the plunge'r p to open the circuit and allow valve i to be closed by spring l. i

Vhat I claim is: l. in aV pressure reducing valve mechanism, the combination with high and lon' pressure mains, having aconnecting passage,'a

said passage, mechanism for destroying the balance to close the valve, and an elect-romagnct controlling said mechanism, of a switchin the energizing circuit of the magnet actuated by an exce ofpressure in the low pressure'rnain to cause the magnet to actuate the unbalancing mechanism and close. the valve, whereby upon an excess of pressure in the low ypressure .main the valve is closed and' a.; the pressure falls the valve is automatically opened; substantially as described.

2. lnii pressure-reducing-valve median-'65 f ism, the combination with high and low pres- -sure mains having a. connecting passage, of a valve controlling said passage, a stcn. for sau valve-,ra diaphragm connected to said stein, a casing forming a chamber about the diaphragm in which an increase of pressure tends to close said valvc,said chamber being connected with the low pressure mainv through a restricted passage and having a'n exhaust port, a' valveeontrollng said exhansb port, and a magnet actuated by variations in pressure in Ythe low-pressure main controllingy said exhaust-port valve; substan iially as described.

3. ln a pressure-reduciug-valve mechan'- ism, the combination with high and low pressure mains having a'eonnecting passage, of a valve controlling said passage and normally openedby the pressure in ine high-pressure main, a stem for said valve, a diaphragm con ncctcd to said stem, a casing forming a chamber about the diaphragm in which an in-i crease of pressure tends to close the valve, said chamber being connected with the low pressure main through a restricted passage and havinga normally open exhaust port, a valve controlling said exhaust port, a magnet controlling said valve. and mechanism act.

ing upon the energizing circuit of-the magnet and actuated by an excess of pressure in the low-pressure main to close the exhaust port, substantially as described.

4. la a. pressiire-reilucing-valve mechanism the combination with high and low pressure mains separated by a horizontal partition having a vertically opening connecting passage, of a cone-seated valve controlling said passage and having a. weighted stem which is normally lifted by-the pressure in the high-pressure main, a shitting-box through which the stem extends into the valve cas-ing, a. frame about said sternJ a diaphragm' su ported on said frame and connected to tie valve stein, 'a cap secured to the frame and forming a. diaphragm chamber above the diaphragm, said chamber being connected with the lorr-` ressure main by a restricted assage exten ing through the frame to the. ow pressure main and said cap containinf an exhaust portfor the diaphragm clian1ber,' a magnet mounted on the cap, an armature for said magnet, a valve controlling the exhaust port fromY the diaphragm chamber and connected to the armature-7 a spring tending to seat said valve', the armature and spring being so arranged that when the magnet is energized the attraction exerted between the magnet and armature.

ros

l i i seid valve, a diaphragm connected to said ism, the combination with high and low'presconnected scenes I 3v,

said plunger upon an excess of pressure the low-pressure main to open said circuit; lf; substantially as described.

. 5. In a pressure-reducing-valve mechanism, the combination with high and low pressure mains having @connecting passage, a valve controlling said passage, a stem for 'i stem, e casing forming a chamber about the diaphragm in which an increase of pressure tends to close said valve, seid cha'mber being with.V the low pressure mein through a; restricted passage and having an I exhaust port, a valve controlling seid exhaus*l port, and a magnet controlling said exhaust-port valve, of a switch in the enfrgizing circuit of the magnet, a plunger arranged 1o actuete said switch and a casing surrounding the plunger and communicating with` the low-pressure main; substantially as described.-

6. In a pressure-reducing valve mechansure meins having a connecting passage, of e. valve controlling said passage and normally lifted by the pressure in the high pressure main, a weightedjstem for said valve, a diahregrn connected to seid stem, a casing orming a chamber about the diaphragm in which en increase of pressure tends to close said valve, seid chamber being connected with a source of liuid supply and having an exhaust. port, a .valve controllin said ei;- haust port, and a. magnet fictuater by nu increase in pressure in the low pressure main for closing said exhaust-port valve; substantially as described.v i

7. In a pressure-reducing valve mechanism, the combination with high and low pressure mains having a connecting passage, of a 4 valve controlling said passage, a stem for f valve, a diaphragm connected to seid ,j stern, s, casing Iorinmg 'e chamber aboutvhe diaphragm 1n which an increase of pressure:

rends to close seid valve, seid chamber being connected vvih f the lon' pressure msm hrengh a resriced passage and havingr an exhaust port, a regulating valve in seid restricted passage, a velve centrollinv seid eX- hsusport, and s maffner actuated y en increase 1n reure in the ion' pressure main to close seiriJexhausbport valve; substantially ss described.

S, In a pressure reducing valve mechanism, the combination with high and low pressure mains having a r`penneeting passage, a valve controlling said passage, mechanism or closing seid valve, and an electro-magnet controlling seid mechanism, of Ineens for conrrolling the circuit of said magnet comprising a casing secured to and communicasting with the low pressure main, a iston in' said casing, n plunger carried by sai pisen, a lever pivoed in the psrh of moverneu of seid plunger, s contact pin depending rom seid -.ever and a mercury cup beneath the. eenrsct pin, whereby on en increase of pressure in the low pressure main the psron nieves the plunger to sensate the lever and cenrsct pin and thereby control the circuit ci the e cetro-magnet; substantially es described.

ln testiincu'rv1 whereof I siix my signsw, in presence of two Witnesses.

. FRANK TAYLOR CABLE 'itnesses:

F. I1- BRA, W. D. FEsLER. 

